Cover and process of making



M.- WALSTROM CQVER AND PROCESS OF MAKING Nov. 18, 1930.

Filed April 14, 192'? VENTOI? Patented Nov. 18, 1930' AXEL M.

7 COMPANY, OF ELGIN, ILLINOIS, A CORPORATION ILLINOIS oovnn AND irnocnssjor'maxmei a l cation filed April 14, 1927; SerialNo. 1s3,eei.;-

This invention relates to a container such Y as a contalnermade of wood or other SLlltfidDlQ material and particularly'to cover for-said container. While the container of one purpose-for whichthecontainer has been used is to contain butter. Such containers are commonly of cylindrical form and preferablysomewhat tapered toward their hot tom-er lower end.

It is desirable to have such a container of simple, strong and rugged construction and to 'have the same of neat and uniform appearance. It is also'desirable to have such a container and the cover} therefor constructed and arranged so that there are no projecting parts adapted to, injure the handsof the persons handling the container or cover. It 1s further lZlQSll'ELblSiiO have such a container and cover thereforso constructed that if the containers are, piled one on another, andv moved: in engagement with each 7 other, that the cover or parts thereof will not be damaged or separated in any manner; It is desirable to have the covers of such form that they may be nested" or packed in'very compact; form.

for handling and transportation'.ov

It is an object of this invention, therefore,

to proviee a cover-for a container preferably of cylindrical form, having a crowned top surface and a beveled peripheral edge.

It is another object of the invention to provide a cove'rlfor a container preferably of cylindrioalform,having a: central portion of rate fastening means, by being rolled orspun j vention illustrated it is shown as cylindrical into engagement with the edge of said central portion which is made of angular or irregular formin radial cross section,

It is still further an object of the'invention to the type; referred to ma *be used for various ur J'OSQS' T; a

Y- Ullig. 3 is a radial section through the metal provide a cover for a containerprefer cylindrical form, having a central portion with the edge thereof beveled'i-n opp site directions and havinga metallic rim or fiangefitted or clamped thereto, extending about both beveled portions of said edge.

It is still another object of the invention to providea cover for a container preferablyof cylindrical form, said cover having a central portion of wood or'other material surrounded by: a metallic flange, .said flange 'havingcin cumferentiallyextending corrugations therein and flaring outwardly from the lower, side efsaid cover. J I t isa lsjo an object of the invention to provide a novel and eiiicient' method of making 7 cover for aoontamer preferablyof cylindrical form. V a r i 1 &

These and other objects and advantages of the invention will be fully set forth in the following description made in-connection with the accompanying drawings, in which like reference characters refer to similar wALsTiaoIv or mrnnnero'nrs, mmlvnsore, Assrenon'ro ELGIN nu'rrna TUB parts throughout the several views and in which p v Fig.1 is a view in side tainer with the cover thereon;

Fig. 2 is a partial view inside elevation of the container, portions thereof and of the covelevation of a coner being obroken'away and other parts being shown vertical section;

ri-n' before beingapplied to the cover; r

. Flgt l 1s a radial section of the edge por tion of the central part ofthe cover before havingthesurrounding metal frame or flange applied; v a v Fig. 5 is a view in radial section ofa central part of the cover and flange, showinghow the flange is firs-tapplied to the cover; and

Fig.6 is a view showing portions of several completed coversvas they may be assembled in nested relation. v

Referringto the drawings, a container 10 is shown, and while the container may have various forms, in the embodiment of the in in form and tapered somewhat toward its lower end; Such a container is now largely used as a tub in which to pack and transport butter, lard and other similar materials.

S aid' container is equipped with a plurality of hoops 11 closely fitting thereon and while any sultable type of hoop may be used, one

' form which is preferred in practice is that shownand described in applicants prior Patent No. 1,605,628, granted Nov. 2, 1926. for metal hoops. The container 10 is shown as having the top portion lfl slightly beveled inwardly. l/Vhile this beveled portion is not absolutely necessary, it preferably is used with the novel cover to be later described.

The cover for the container 10, designated generally as 12, comprises a central portion 12 of disk-like form, and while in practice it then made of angularsha-pe in cross section and While said edge may be of various con- -formations,'in the embodiment of the inventionillustrated it is made generally convex or y with an outwardly directed angle. Said pertion 12; has its top side beveled'outwardly anddownwardly to form a surface 12 and said portion is alsofurther beveled at the under side of its edge to form a surface 12. While the surfaces 12 and 12 may be of various contours andinclined at various an gles, in the embodiment of the invention illustrated they are shown as substantially conical'surfaces, beveled respectively substantially at angles of 3 0 and 4:5 to the top surface of portion 12 W'hile thesu'rfaces 12 and 12 may meet at a sharp angle, preferably there is a quite narrow cylindrical portion 12 therebetween.

A rim or flange portion 12 is provided for the cover 12 which is made from a flat strip of thin metal which strip is rolled in a suitable machine comprising properly corru- I gating rolls, to the shape shown in Fig.8.

Said flange has an intermediate bead 12 formed therein from the sides of which extend the flange portions 12 and 12 It will be seen that the flange portions 12 and 12 flare outwardly from the sides of the head 12.

the head. 12 being placed against the surface- The flange 12 is further provided with a terminal corrugation or bead 12 illustrated as substantially semi-cylindrical in form and having its concave side directed inwardly of the rim or oppositely to that of bead 12 The flange 12 is cut to proper length and then bent into cylindrical shape, the ends thereof being connected bythe rivets 18 to form a cylindricalhoop. After the hoop has been thus riveted and formed, the same is placed about the portion 12 one side of 12 as shown in Fig. 5 and the meeting edge of the surface 12 and 12 being disposed in broadly convex.

the corner between the side of the bead 12 and the flange 12 The portion 12 and the rim 12 are then brought to a machine having a rotating spinning roller 14: thereon.

surfaces at both sides of the angle appearing in the radial cross section of the edge of said centralportion so that it is tightly crimped thereto-and is thus fixed in position relatively to said cover. After the rim is thus rolled onto the central portion 12 it is Very firmly held thereon and tightly secured to tlie portion 12 without the use of any nails or separate fastening means. The edge of the rim 12 is rolled into very close contact with the surface 12 and may even be rolled somewhat into said surface so that there is a substantially smooth and continuous surface along the top of flange 12 and surface 12 After the rim 12 has been thus rolled onto the cover, the cover presents the appearance shown in Figs. 1, 2, and 6. As above stated, the portion projecting from the bottom side of the cover flares outwardly. It will be seen'that the portions 12 and 12 fit tightly about the angular portion of the edge of the central portion 12 which is formed by surfaces 12 and 12. The metal rim, of course, bends in a curve and it, as well as the edge of the central portion, is It will be also noted that the side-of the head 12 not in engagement with the cover is disposed in a plane substantially alined with the plane of the bottom side of the cover. The cover can now be placed on the container 10 and the flange 12 extends down about the top of the portion 10 It will be seen that the side of the bead 12 which is not in engagement with the central portion12 of the cover is disposed substantially at the top of the container 10. The

projecting flange on the cover extends down over the top of the tub 10 and forms a novel and efiective closure therefor.

From the above description it is seen that I- jects. The beaded form of the rim cover makes the same quite strong. 1t is also poin ed out that with such a cover a narrower strip of stock for the member 12 can be used than where a rim is used extending along the periphery of the cover, and over the top, such as have been used in some covers of the prior art. The covers also lend themselves to being packed or nested in compact form such as shown in Fig. 6, so that the transportation cost can be kept at a low figure. The containers are often piled one on another with the covers thereon and it is a common practice to slide one container from another and across the top thereof. If there are ings in the top of the cover or if the edge of the rim projwcts above the top of the cover the same is quite apt to be torn loose as one heavy tub slides across the other. With the PYQSQDbCOKlSlJlUCtlOIl there is no danger of any such occurrence as the rim is entirely.

below the topv of the cover. The cover has been amply demonstrated in actual practice and found to be very successful and eillcient.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the apparatus and in the steps, and sequence ofstcps of the method, Without de .a

erally stated, consists ina method and app..- i'atus capable of carrying out the objects above set forth, such as disclosed and defined in the appended'claims lVhatis claimed is: 1. A cover for a cylindrical container comprising a non-metallic central, portion having its top beveled downwardly adjacent its edge for an appreciable-distance to form an an-- nular 'zone and a metallic :rim' spun about the edge of said central portion and extending partially across said zone.

2. A cover for a container comprising a non-metallic central portion with a pcripheral edge formed substantially as an angle in radial cross section, a peripheral rim secured to said central portion pressed into engagement with said peripheral edge at both sides of said angle and having its upper edge disposed below the top of said central portion whereby a cover is formed container which consists in providing a non-' metallic central portion, forming an angular edge on sand central portion, rolling I ng from .tl scope of apphcants inventn, which, gena "rim from a'strip 0f: 'fiat 1nate lial:to,-, form a, longitudinally extending corrugation therein, bendingsaid strip andunitingthe ends thereof to fornrahoop-an d spinning I said .hoop: onto the edge of; said central 'portion to. embracetheedge surface thereofwith its upperv edge below the top of said;

central portion. I

5.-;Tl1e method of forming a cover'for 'a container which consists in providing a con tra-l non-metallicv POTtlOH fOFHHng' the edge portion ofthe top surface thereof ,with a downwardly inclining surface, forming; an inwardly ll'lClllllIlg. surface at the peripheryof said cover intersectingsaid downwardly.

inclining surface in a circumferential line,

to a form an outwardly directed angle in- I radial'cross section, rolling a rim from a. strip of metal toforin a corrugationextendin-g longitudinally thereof, bending said strip and uniting the ends thereof to form a hoop of frusto-conieal fOlllLbIiIlglllg0118 side of said corrugation against one side of;

the angde atlthe v edge of sai'dpentral portion, and rolling sa dl hoop said'downwardly inclined ,por iond 6; The method of forming a cover container which consists'in providinga non metallic centralportion .formingthe edge thereof of convex shape in radial cross section, forminga'hoop of a strip of metal and spinning said hoop about the edge of said central portion so as to embrace the same and be secured thereto with its upper edge below the top of said central portion.

7. cover for an open top container comprising anon-metallic d1slz-l1ke central portion having its top edge beveled downwardly adjacent its edge for-an appreciable distance,'a metallic rim'clamped about the edge of said central portion and extending partially across said beveled portion, said rim extending inwardly of the outer edge of about the edge'of sa dcentral portion whereby tis secured thereto'and extends partlyover for a.

said central portion below said beveled portion and having a depending downwardly flaring llange below said "central portion, said flange having a bead at'the lower edge of its concave side directed inwardly, whereby said covers may be arranged in nested relation. I

8. A metal bound cover for a'container, which cover has a central disk-like'nonmetallic portion having a crowned upper surface, a metal binning fitting about the edge of'said non-metallic portion and closely engaging the same and having its inner edge extending inwardly for some distance on said upper surface but disposed below the uppermost portion of said upper surface and rolled into smooth engagement with said upper surface.

9. A cover fora container comprising a non-meta1li0 q central portion having its peripheral edge angular in radial cross section and a metallio rim crimped on and closely engaging said peripheral edge at both sides of said angle, said central portion having an annularzone adjacent its edge disposed below the portion surrounded by said zone, the inner portion of said rim extending partially over said zone and having its inner edge rolled into close engagement with ]Q the upper surface of said non-metallic portion within said zone and below the uppermost'surfa ce of said central portion.

' A cover for a container comprising a non-metallic central portion with a peripheral edge angular in cross section, a rim rolled onto and closely engaging said peripheral edge and depending below the bottom surface thereof, said rim having a plurality of circumferentially extending corrugations therein, one of which corresponds to and closely fits said edge of said central portion.

11. A cover for a container comprising a non-metallic central portion having an angular peripheral edge, a metallic rim clamped onto said peripheral edge and closely engaging the same, said rim having a depending flange, said flange flaring down- 7 Wardly whereby said covers may be assembled in nested relation.

In testimony whereof I aflix my signature.

AXEL M. WALSTROM. 

